package/freescale-imx/firmware-imx: bump version to 8.20

Both the COPYING and EULA files have changed, with the following main
changes:
  - update to copyright years (2022 -> 2023)
  - switch from ASCCI double quotes to fancy Unicode ones ("" -> “”)
  - reflow the license text
  - identify new third-parties and their conditions

Signed-off-by: Stefan Nickl <Stefan.Nickl@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/freescale-imx/firmware-imx/firmware-imx.hash

@@ -1,5 +1,5 @@
 # Locally calculated
-sha256  937e196476b8e95b4b7f2501a14c8326d8a0649f8a3f9228b72373770a08deb3  firmware-imx-8.15.bin
-sha256  35188e65dbb9c7da4bbcb77c7726e835607f9f41b8b44149806ea51429ca9a31  COPYING
-sha256  30f61825583b4c26d29a798ad7e4c8ef2f2f390b1e964af302d2dc40e93cb0a4  EULA
+sha256  f6dc6a5c8fd9b913a15360d3ccd53d188db05a08a8594c518e57622478c72383  firmware-imx-8.20.bin
+sha256  913ba38d4be97361c3d0fa9bf2f6dbe7b1c0c41213dd268fb6738db9704dbe32  COPYING
+sha256  4fd8bb45a2ec22117d20cfea84370e2a3a2cd99e8e177138bed0938137b1aeb3  EULA
 sha256  40d02f6d6b4e94d9307529408f372f5a9908cf3d156ec533a4e54274b40f271e  SCR.txt

package/freescale-imx/firmware-imx/firmware-imx.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-FIRMWARE_IMX_VERSION = 8.15
+FIRMWARE_IMX_VERSION = 8.20
 FIRMWARE_IMX_SITE = $(FREESCALE_IMX_SITE)
 FIRMWARE_IMX_SOURCE = firmware-imx-$(FIRMWARE_IMX_VERSION).bin